Prevents backdraught when the fan is not in use. Designed to meet and conform to the latest building regulations. The designs have significant advantages over conventional round systems. Its low profile enables it to be concealed when installed along the top of wall units.
Will not connect to ducting without connectors.
Note: As of 2015/October: Item may now be manufactured with Metal springs rather than a plastic strip. This does not affect the performance of the item.
For use with Manrose inline fans
PLEASE NOTE: This product is only supplied with one spring / plastic strip. This product is designed for use with Manrose small fans.
Ian Hammond (verified owner) –
As described, good price fast delivery. All good.
George john Paszkowski (verified owner) –
A good product that should be as standard when buying extractor fans.It prevents back draughts and the howling along the tube.What might disturb some ,is the closing of the shutters , you can hear them.
Thomas English (verified owner) –
Easy to fit, and does the job perfectly.
Geoffrey Barker (verified owner) –
Excellent service and delivery
Peter Zielonka (verified owner) –
product was as I was expecting but Mr Stanley was exceptional he went out of his way to help me which was greatly appreciated Highly recommended
Daniel Gravell (verified owner) –
Worked well when vertically mounted above an extractor fan. Noticeably reduced draughts via stack effect through the duct. Not perfectly airtight with small holes in the flaps, but ok for this job.
Tim Gibbs (verified owner) –
Good quality,delivered on time
Oliver Radcliffe (verified owner) –
Bit flimsy but does the job. House feels warmer. Easy to fit inside flexible duct
Alan Terry (verified owner) –
as expected
Alan Terry (verified owner) –
the item was as expected
Hilary Crewe (verified owner) –
Perfectly in every aspect from ordering through to delivery. Many thanks for your help and efficient handling of our order.
Glynn Norton (verified owner) –
Both items were exactly as described and were promptly delivered – well done i-sells.
John Shepherd (verified owner) –
Very useful piece of kit. Thanks
Michael Angove (verified owner) –
very good item just what was wanted thanks
Ian Stewart (verified owner) –
Well made, does what its meant to do. Is better horizontal
Tim Emms (verified owner) –
exactly as described v good service
Charles Thurlow (verified owner) –
It did exactly what I wanted – it slid neatly into the existing 100mm duct, compensating for the inadequate back draught flap on the existing fan. Now, there is minimal dust accumulating in my on suit bathroom, a dramatic improvement on the previous situation. I highly recommend this product for its efficacy and the company who supplied it for their speed of response.
Ric Rayer (verified owner) –
EXCELLENT SERVICE GOODS DELIVERED WITHIN 24 HRS PART IN GOOD ORDER
John Razzell (verified owner) –
Yes it did, easy to install and solved back draft problem on bathroom fan
MICHAEL CLARK (verified owner) –
Great! Did exactly what it was supposed to do.
Geoffrey Smith (verified owner) –
Easy to install and seems to be working OK, delivery time was well within the expected.
Peter White (verified owner) –
Easy to fit into the extraction system keeping out the backdraught superbly.
Anonymous (verified owner) –
1 star is not for the product but for the description. The description says For Manrose fans and only after I receive the product do I discover that it can only be used in a horizontal set up. The poor description needs updated!
Peter Thorpe (verified owner) –
Ive only checked its operation along with all the other parts that I am planning on using for my bathroom in-line extractor system and it works but I cant say how well it will do to prevent any potential back draught until it is in place and commissioned.
Ralph Turner (verified owner) –
This is for the second Manrose fan to which I going to add this type of fitting. The first one worked and this one also seems to be ready to instal, the one spring seems strong / effective enough – great expectations! (It opens with a gentle blow on it and closes easily.)
Nigel Gibson (verified owner) –
Works very well
Robert Taylor (verified owner) –
Fitted the product and disappointed with its performance, as per other reviews there is only 1 weak flimsy spring fitted which only seems to close one of the flaps fully, i have tried fitting it 2 ways one flap on top of the other and turned it 90 degrees so the flaps both hang vertically side by side but the spring only fully shuts one of the flaps as it is such a loose fitting spring and does not put tension on both flaps Definitely would not reccomend this product and i am surprised with a company like Manrose that produces such good quality products as put their name to this poor product The only good thing is that it fitted straight on to the spigot of an existing Manrose fan Nothing against I Sells the product was delivered in a fast and efficient manner
Michael Hembry (verified owner) –
Looks OK appears to work
Patrick McCauley (verified owner) –
Great product and fits nicely into my vents and prevents blowback of drafts. The service was fantastic and delivery was quick.